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Weather & Climate in Grangwav, Haiti
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grangwav has a warm climate with an average annual temperature of 75°F (24°C). Winters average 72°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 234 sunny days per year, above the national average. Annual precipitation totals 56.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 75 feet.
Temperature
72°F Jan (22°C)
78°F Jul (26°C)
| Annual Average | 75.4°F |
| 40% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 234 days/yr |
Geography
| Elevation | 75 ft (23 m) |
| Area | 105.7 sq mi (273.7 km²) |
| Population Density | 466/sq mi |
| Coordinates | 18.4259°N, 72.7700°W |
| Timezone | America/Port-au-Prince |
Precipitation & Snow
Air Quality
Earthquake History
245 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Aug 14, 2021 | Nippes, Haiti | M7.2 | 75 km | 10 km |
| Jan 12, 2010 | 10 km SE of Léogâne, Haiti | M7.0 | 21 km | 13 km |
| Jan 12, 2010 | 4 km SSW of Grangwav, Haiti | M6.0 | 5 km | 10 km |
| Jan 20, 2010 | 4 km ESE of Tigwav, Haiti | M5.9 | 6 km | 11 km |
| Jan 13, 2010 | Haiti region | M5.8 | 16 km | 10 km |
| Aug 15, 2021 | 15 km NNE of Chardonnière, Haiti | M5.8 | 139 km | 8 km |
| Jan 12, 2010 | Haiti region | M5.7 | 27 km | 10 km |
| Jan 13, 2010 | 1 km SSE of Tigwav, Haiti | M5.6 | 10 km | 10 km |
| Jan 13, 2010 | 5 km SE of Tigwav, Haiti | M5.6 | 6 km | 10 km |
| Jan 8, 1997 | 63 km S of Marigot, Haiti | M5.4 | 103 km | 10 km |
| Jan 13, 2010 | 4 km SSW of Tigwav, Haiti | M5.4 | 13 km | 10 km |
| Jan 12, 2010 | Haiti region | M5.3 | 27 km | 10 km |
| Jan 24, 2022 | 4 km S of Anse-à-Veau, Haiti | M5.3 | 60 km | 10 km |
| Jan 13, 2010 | 8 km SSW of Grangwav, Haiti | M5.2 | 9 km | 10 km |
| Aug 14, 2021 | 11 km N of Baradères, Haiti | M5.2 | 91 km | 9 km |
| Jan 13, 2010 | 12 km S of Tigwav, Haiti | M5.2 | 17 km | 10 km |
| Jan 24, 2022 | 4 km E of Anse-à-Veau, Haiti | M5.1 | 56 km | 10 km |
| Jan 13, 2010 | 4 km W of Grangwav, Haiti | M5.1 | 5 km | 10 km |
| Jan 13, 2010 | 6 km W of Tigwav, Haiti | M5.1 | 17 km | 10 km |
| Aug 14, 2021 | 10 km WSW of Baradères, Haiti | M5.1 | 102 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
15 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Beryl | Category 4 | 150 mph | 249 km |
| 2024 | Oscar | Category 1 | 86 mph | 264 km |
| 2020 | Isaias | Category 1 | 81 mph | 213 km |
| 2016 | Matthew | Category 4 | 150 mph | 161 km |
| 2010 | Tomas | Category 1 | 86 mph | 192 km |
| 2008 | Ike | Category 4 | 132 mph | 286 km |
| 2008 | Gustav | Category 1 | 92 mph | 36 km |
| 2007 | Dean | Category 4 | 144 mph | 214 km |
| 2006 | Ernesto | Category 1 | 75 mph | 170 km |
| 2005 | Dennis | Category 2 | 104 mph | 235 km |
| 2001 | Iris | Category 1 | 86 mph | 173 km |
| 1998 | Georges | Category 2 | 81 mph | 75 km |
| 1988 | Gilbert | Category 3 | 127 mph | 148 km |
| 1987 | Emily | Category 3 | 121 mph | 148 km |
| 1980 | Allen | Category 5 | 178 mph | 129 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 3.2 m (11 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2010 | HAITI & DOMINICAN REPUBLIC | Eruption + Earthquake | 3.2 m | 316,000 | 25 km |
| 2021 | PORT-AU-PRINCE | Earthquake | — | 2,248 | 74 km |
| 1860 | ANSE-A-VEAU | Eruption + Earthquake | — | — | 62 km |
| 1860 | PETIT TROU NIPPES | Earthquake | — | — | 78 km |
| 1770 | PORT-AU-PRINCE | Eruption + Earthquake | — | 200 | 50 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 1.3 in | Coldest |
| February | 73°F (23°C) | 1.7 in | |
| March | 74°F (23°C) | 2.6 in | |
| April | 75°F (24°C) | 5.4 in | |
| May | 76°F (24°C) | 8.4 in | Wettest |
| June | 78°F (25°C) | 5.4 in | |
| July | 78°F (26°C) | 5.1 in | |
| August | 78°F (26°C) | 7.0 in | Warmest |
| September | 78°F (25°C) | 6.9 in | |
| October | 77°F (25°C) | 8.4 in | |
| November | 75°F (24°C) | 3.2 in | |
| December | 73°F (23°C) | 1.0 in | Driest |
Grangwav has a seasonal temperature swing of 6°F / from 72°F in January to 78°F in August. Total annual precipitation is 56.4 inches, with May being the wettest month (8.4") and December the driest (1.0").